1 files changed, 165 insertions, 0 deletions
diff --git a/src/std_path.c b/src/std_path.c
new file mode 100644
index 0000000..b8e1d3f
--- /dev/null
+++ b/src/std_path.c
@@ -0,0 +1,165 @@
+/*
+ * Copyright (c) 2019, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *    * Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *    * Redistributions in binary form must reproduce the above
+ *      copyright notice, this list of conditions and the following
+ *      disclaimer in the documentation and/or other materials provided
+ *      with the distribution.
+ *    * Neither the name of The Linux Foundation nor the names of its
+ *      contributors may be used to endorse or promote products derived
+ *      from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+=======================================================================
+
+FILE:         std_path.c
+
+=======================================================================
+=======================================================================
+*/
+
+#include "AEEstd.h"
+#include "AEEBufBound.h"
+#include <string.h>
+/*===========================================================================
+
+===========================================================================*/
+int std_makepath(const char* cpszDir, const char* cpszFile,
+                 char* pszOut, int nOutLen)
+{
+   BufBound bb;
+
+   BufBound_Init(&bb, pszOut, nOutLen);
+
+   BufBound_Puts(&bb, cpszDir);
+
+   if (('\0' != cpszDir[0]) &&    /* non-empty dir */
+       ('/' != cpszDir[std_strlen(cpszDir)-1])) { /* no slash at end of dir */
+      BufBound_Putc(&bb, '/');
+   }
+   if ('/' == cpszFile[0]) {
+      cpszFile++;
+   }
+
+   BufBound_Puts(&bb, cpszFile);
+
+   BufBound_ForceNullTerm(&bb);
+
+   return BufBound_Wrote(&bb) - 1;
+
+}
+
+/*===========================================================================
+
+===========================================================================*/
+char* std_splitpath(const char* cpszPath, const char* cpszDir)
+{
+   const char* cpsz = cpszPath;
+
+   while ( ! ('\0' == cpszDir[0] ||
+              ('/' == cpszDir[0] && '\0' == cpszDir[1])) ){
+
+      if (*cpszDir != *cpsz) {
+         return 0;
+      }
+
+      ++cpsz;
+      ++cpszDir;
+   }
+
+   /* Found the filename part of the path.
+      It should begin with a '/' unless there is no filename */
+   if ('/' == *cpsz) {
+      cpsz++;
+   }
+   else if ('\0' != *cpsz) {
+      cpsz = 0;
+   }
+
+   return (char*)cpsz;
+}
+
+char* std_cleanpath(char* pszPath)
+{
+   char* pszStart = pszPath;
+   char* pc;
+   char* pcEnd = pszStart+std_strlen(pszStart);
+
+   /* preserve leading slash */
+   if ('/' == pszStart[0]) {
+      pszStart++;
+   }
+
+   pc = pszStart;
+
+   while ((char*)0 != (pc = std_strstr(pc, "/."))) {
+      char* pcDelFrom;
+
+      if ('/' == pc[2] || '\0' == pc[2]) {
+         /*  delete "/." */
+         pcDelFrom = pc;
+         pc += 2;
+      } else if ('.' == pc[2] && ('/' == pc[3] || '\0' == pc[3])) {
+            /*  delete  "/element/.." */
+         pcDelFrom = std_memrchrbegin(pszStart, '/', pc - pszStart);
+         pc += 3;
+      } else {
+         pc += 2;
+         continue;
+      }
+
+      std_memmove(pcDelFrom, pc, pcEnd-pcDelFrom);
+
+      pc = pcDelFrom;
+   }
+
+   /* eliminate leading "../" */
+   while (pszStart == std_strstr(pszStart, "../")) {
+      std_memmove(pszStart, pszStart+2, pcEnd-pszStart);
+   }
+
+   /* eliminate leading "./" */
+   while (pszStart == std_strstr(pszStart, "./")) {
+      std_memmove(pszStart, pszStart+1, pcEnd-pszStart);
+   }
+
+   if (!strncmp(pszStart,"..",2) || !strncmp(pszStart,".",1)) {
+      pszStart[0] = '\0';
+   }
+
+   /* whack double '/' */
+   while ((char*)0 != (pc = std_strstr(pszPath, "//"))) {
+      std_memmove(pc, pc+1, pcEnd-pc);
+   }
+
+   return pszPath;
+}
+
+char* std_basename(const char* cpszFile)
+{
+   const char* cpsz;
+
+   if ((char*)0 != (cpsz = std_strrchr(cpszFile,'/'))) {
+      cpszFile = cpsz+1;
+   }
+
+   return (char*)cpszFile;
+}